Akai-HXM659W-tape-sm 电路图 维修手册.pdf

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1、AKAI AKAI : HX-M659W C LEVEL I POWER DOLBY NR O MODEL HX-659W STEREO DOUBL CASSETTE DECK MODEL HX-M459W MODEL HX-M659W SPECIFICATIONS I O Track System 4 track 2 channel stereo Heads H D head for recording Improves up to 5 dB at 1 kHz, 10 dB above 5 kHz Total harmonie distortion Less than 0.9% (Metal

2、) Frequency response Normal 30 Hz to 14,000 Hz 3 dB Metal 30 Hz to 15,000 Hz 3 dB Input sensitivity/ Impedance 70 mV/50 kohms Output sensitivity/ Impedance 388 mV/2 kohms Power requirements 220 V, 50 Hz for Europe ex- cept U K 240 V, 50 Hz for U K and Austraria 110 V - 120 V/220 V - 2 4 0 V, 50 Hz/6

3、0 Hz Convertible for other countries Dimensions 350(W) X 136(H) X 345(D)mm (13.8 X 5.4 X 13.6 X inchies) Weight 4.0 kg (8.8 Ibs) Model HX-M459W 4.2 kg (9.2 Ibs) Model HX-M659W Standard accessories Connection cords R C A pin cord X 2 * For improvement purposes, specifications and design are subject t

4、o change without notice. * Noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. Dolby and double-D symbol are trad marks of Dolby Laboratories Licensing Corporation. RadioFans.CN 收音机爱 好者资料库 * S A F E T Y I N S T R U C T I O N S PRECAUTIONS DURING SERVICING 1. Par

5、ts identified by thezyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA l parts are critical for safety. Replace only with parts number specified. 2. In addition to safety, other parts and assembhes are specified for conformance with such regulations as those applying to spurious radiation. These m

6、ust also be replaced only with specified replacements. Examples: RF converters, tuner units, antenna selector switches, RF cables, noise blocking capacitors, noise blocking filters, etc. 3. Use specified internal wiring. Note especially: 1) Wires covered with PVC tubing 2) Doubl insulated wires 3) H

7、igh voltage leads 4. Use specified insulating materials for hazardous live parts. Note. especially: 1) Insulation Tape 2) PVC tubing 3) Spacers (Insulating Barriers) 4) Insulation sheets for transistors 5) Plastic screws for fixing microswitch (especially in turntable) 5. When replacing AC primary s

8、ide components (transform- ers, power cords, noise blocking capacitors, etc), wrap ends of wires securely about the terminals before soldering. 6. Observe that wires do not contact heat producing parts (heatsinks, oxide metal film resistors, fusible resistors, etc). * I N F O R M A T I O N 7. Check

9、that replaced wires do not contact sharp edged or pointed parts. 8. Also check areas surrounding repaired locations. 9. Use care that foreign objects (screws, solder dropiets, etc.) do not remain inside the set. SAFETY CHECK AFTER SERVICING Confirm the specified insulation resistance between power c

10、ord plug prongs and externally exposed parts of the set is greater than 10 M ohms, but for equipment with external antenna terminals (tuner, receiver, etc.) and is intended for zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA c or A specified insulation resistance should be head- phone jacks, li

11、ne-in-out jacks, etc. more than 2.2 M ohms (ground terminals, microphone jacks). SYMBOLS FOR PRIMARY DESTINATION Alphabet indicates the destination of the units as listed below. Symbols Principal Destinations USA |BJ UK Ic Canada | E | Europe (except UK) 1J1 Japan 1 s 1 Australia 1 V 1 W. Germany on

12、ly Universal Area |Y*| Custom version VOLTAGE CONVERSION ( J Model only) Before connecting the power cord, set the VOLTAGE SELECTOR located on the rear panel to the power requarment for your area. 110120V I r220-240V ni 0 VOLTAGE SELECTOR 2 SERVICE MANUAL RadioFans.CN 收音机爱 好者资料库 I. CONTROLS O O O TA

13、PE I Cassette Holder and Lid Load a cassette here for playback. Includes built-in auto tape selector. O POWER Indicator Tells you the cassette deck Is turned on. O LED (Light Emitting Diode) PEAK Leve! iUeter (L:Left/R:Right) Shows recording and playback levels. O RECORDING Indicator Tells you the c

14、assette deck is in the recording mode. O DUB SPEED (x2) Indicator Tells you the cassette deck is in the high speed dubbing mode. O TAPE II Cassette Holder and Lid Load a cassette tape here for recording and playback. Does not include auto tape selector. O TAPE il Deck Tape Operation Buttons (REC, PA

15、USE, , H / , and ) For tape winding, playback and recording operatlons. TAPE COUNTER and RESET Button for the TAPE II deck Shows elapsed playback time of the loaded cassette tape. O DUBBING SPEED Switch (x2 / x 1 _ _ ) To select the dubbing speed. Q) DOLBY NR Switch ( /_ _ ) To record or playback wi

16、th the DOLBY B-type NR system. REC LEVEL Control To set the recording input levels. Can be used to adjust the left and right channel levels at the same time. POWER Button To turn the power on and off. E ) TAPE SELECTOR Switch for TAPE tl Deck (METAL /NORMAL A ) To select the tape position (euqlizati

17、on and bias) according to the cassette tape being used. Attention: Do not change the switch during recording as this may result in the recording and plyback head being magnetized. q) TAPE I Deck Tape Operation Buttons (PAUSE, , / , and MM) For tape winding and playback operatlons. SERVICE MANUAL 3 R

18、adioFans.CN 收音机爱 好者资料库 II. DISASSEMBLY In case of trouble, etc, necessitating dismantling, please dismantle in the order shown m the photographs. Reassemble in reverse order. * Photographs employed in this paragraphs are mode HX-M659W. 4 S E R V I C E MANUAL III. PRINCIPAL PARTS LOCATION POWER TRANS

19、FOMER MAIN PCB TR PCB JACK PCB TAPE I MECHA.BLOCK FRONT PCB TAPE n MECHA.BLOCK Fig. 3-1 SERVICE MANUAL 5 IV. MECHANICAL ADJUSTMENT 4-1. ADJUSTMENT OF HEAD AZIMUTH ALIGNMENT NOTE: Be sure to clean the Heads befor adjustment. IE T A P E I PB HEAD AZIMUTH ALIGNMENT S C R E W TAPEzyxwvutsrqponmlkjihgfed

20、cbaZYXWVUTSRQPONMLKJIHGFEDCBA TL R E C / P B HEAD AZIMUTH ALIGNMENT S C R E W Fig. 4-1 1) Connect the AC milh-voltmeter to LINE OUT. 2) Playback a lOkHz, -15dB Test Tape (AT-750778) by TAPE I or TAPE II. 4-2. TAPE SPEED ADJUSTMENT 4-2-1. ADJUSTMENT OF NORMAL TAPE SPEED 1) Connect the Frequency count

21、er to LINE OUT. 2) Playback a 3,150 Hz OdB Test tape (AT-751263). 3) Adjust Tape Speed Control in the CAPSTAN Motor as shown Fig. 4-2 so that the readings on the Frequency Counter are below. 3) Adjust Head azimuth alignment screw (Refer to Fig. 4-1) so that the reading on the AC milli-voltmeter of b

22、oth Left and Right channels are maximum. T A P E S P E E D CONTROL HOLE ADJISTMENT DRIVER TAPE I TAPE II 3160 5 Hz 3150 5 Hz CAPSTAN MOTOR Fig. 4-2 Adjustment point of Tape speed. 4-2-2. ADJUSTMENT OF X2 TAPE SPEED * Refer to Step 8 and 9 of V. ELECTRICAL ADJUSTMENT. 6 SERVICE MANUAL VI. PARTS LIST

23、ATTENTION 1. When placing an order for parts, be sure to list Part No., Model No. and the description of each part. Otherwise, the non-deUvery of the part or the delivery of a wrong part may result. 2. Please make sure that Part No. is correct when ordering. If not, a part different from the one you

24、 ordered may be delivered. 3. Since the parts shownzyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA in Parts List of Preliminary Service Manual may have been the subject of changes, please use this Parts List for all future reference. HOW TO USE THIS PARTS LIST 1. This Parts List lists those par

25、ts which are considered necessary for repairs. Other common parts, such as resistors and capacitors, are iisted in the Common List for Service Parts from which these parts should be selected and stocked. 2. The Recommended Spare Parts List shows those parts in the Parts List which are considered par

26、ticularly important for service. 3. Parts not shown in the Parts List and Common List for Service Parts will not in principle be supplied. 4. How to read the Parts List. a) Mechanism Block 2. HEAD BASE BLOCK b) PC Board 6. MAIN PC BOARD PART NO. BH-T202 3A320A HP-H2206A010A ZS-477876 ZS-536488 ZG-40

27、2895 DESCRIPTION HEAD BASE BLOCK HEAD R/P PR4-8FU C PAN20X03STL CMT BID20X08STL CMT SP CS ANGLE ADJUST REE. NO. 6-ICl 6-IC2 6-ClA 6-ClB 6-ClC 6X1 PART NO. DESCRIPTION EI-324S36 ICHD14049BP EI-336801 IC MB8841-564M EC-338399 C MMY V 223M 250AC U,E,B,S| EC-3S0949 C MMY V 223M 250DC Jl EC-338397 C MMY

28、V 223M 12SAC C A EI-318384 OSC XTAL NC-18C J -SP (Service Parts) Classification -A small x indicates that this part is not shown in the Photo or Illustration. -This number corresponds with the indi- vidual parts index number in that figure. -This number corresponds with the Figure- Number. Symbols f

29、or primary destination A : AAL(U.S.A.) S; SAA(Austra!ia) B : BEAB(England) U: U/T(Universal Area) C : CSA(Canada) V: VDE(W. Germany) E:CEE(Europe) Y:Custom Version J:JPN(Japan) SP (Service Parts) Classification These reference symbols correspond with component symbols in the Schematic Diagrams. The

30、available PC Board Blocks are Iisted separately. 5. When Part No. is known, Parts Index at end of Parts List can be used to locate where that part is shown in Parts List by its Reference No. Iisted at right of Part No. WARNING A (*) INDICATES SAFETY CRITICAL COMPONENTS. FOR CONTINUED SAFETY, REPLACE

31、 SAFETY CRITICAL COMPONENTS ONLY WITH MANUFACTURES RECOMMENDED PARTS. AVERTISSEMENT A (*) EL INDIQUE LES COMPOSANTS CRITIQUES DE SCURIT. POUR MABSfTENIR LE DEGR DE SCURIT DE LAPPAREIL, NE REMPLACER QUE DES PICES RECOMMANDEES PAR L FABRICANT. PART 8 1. RECOMMENDED SPARE PARTS 2. MECHA BLOCK (PB) Ref.

32、 No. Part No. Description Ref. No. Part No. Description 1 BB-725780T MECHA (PB) BLK TN-21SC-1437 12 ZG-717775 SP PAUSE LEVER 2 BB-725779T MECHA (REC/PB) BLK TN-21SC-1405 13 MZ-7 17776 STOPPER PAUSE 3 BF-717793 FLYWHEEL ASSY 14 ZG-7 17777 SP BUTTON LEVER(C) 4 BL-726493J PINCH ROLLER ARM ASSY 17 ZG-72

33、6486J SP PLAY BUTTON LEVER(S) 5 BL-726496J RF PULLEY ARM ASSY 19 ZG-726487J SP ACTUATOR PLAY 21 ZG-725798J SP AUTO LEVER 6 BL-726500J TAKE UP GEAR PLATE ASSY 22 ZG-726488J SP BUTTON LEVER (E) TAPE SELECTOR 23 ES-726489J SW LEAF MSW-1541T 7 BM-726481T MOTOR M9H12U16-4 24 ZG-726490J SP SW ACTUATOR 8 B

34、R-726505J SUPPLEY REEL ASSY 27 HZ-7 17780 HEAD BASE 9 BR-726506J TAKE UP REEL ASSY 28 BL-726491J SENSING PLATE ASSY 10 BR-725795J TAKE-UP REEL ASSY 30 ZG-717784 SP HEAD PANEL (S) 11 *BT-725635T TRANS POW HX-M459W(B,S) 33 ZS-725799J SCREW PME B,S 34 ZG-717786 SP AZIMUTH 12 *BT-725636T TRANS POW HX-M4

35、59W(E,V) 35 BL-726493J PINCH ROLLER ARM ASSY E,V 36 ZG-725792J SP PINCH ROLLER 13 *BT-725637T TRANS POW HX-M459W(U) 39 BL-726496J RF PULLEY ARM ASSY U PLAY 14 ED.725781T D LED SE65321DS-D 40 ZG-726497J SP RF PULLEY ARM 15 ED-725782T D LED SE65341DS 41 2S-726498J SCREW COLLER RF ARM 16 ED-327057 D SI

36、LICON H DS442X 42 MB-726455J BELT RF 17 ED-348990 D SILICON H DS446 44 BF-717793 FLYWHEEL ASSY 18 ED-720805 D SILICON H 1N5393 46 BL-726500J TAKE UP GEAR PLATE ASSY 19 ED-720799 D ZENER H R D l I E B3 TAPE SELECTOR 20 ED-703903 D ZENER H RD15E B2 47 MI-726456J GEAR TAKE-UP 21 *EF-358641 FUSE BETT 25

37、0V 800MA 48 ZG-726502J SP TG PLATE B 49 MI-725793J GEAR FF 22 *EF-258344 FUSE SEMKOT 250V 800MA 50 ZG-725794J SP BACKTENSION E,V,S 51 BR-726505J SUPPLEY REEL ASSY 23 EH-720815 FILTER KM-10DF 52 BR-725795J TAKE-UP REEL ASSY 24 EI-345551 IC LB1403 54 ZG-726508J SP BACKTENSION 25 EI-709250 IC M51522L 5

38、6 MB-726509J CUSHION MOTOR 26 EI-310036 IC TC4066BP 57 ZS-725791J SCREW COLLER 27 EI-720804 IC UPC1210C 58 MR-719575 MOTOR PULLEY 28 ES-726521J SW LEAF MSW-1275 59 MB-725796J BELT MAIN 29 ES-726522J SW LEAF MSW-1373 62 ML-7 17804 LEVER SLIDE EJECT 30 ES-726489J SW LEAF MSW-1541T 63 ZG-7 17806 SP LEV

39、ER SLIDE EJECT 31 ES-726523J SW LEAF MSW-1664 64 ZS-725797J SP CASSETTE PACK 32 ES-722984T SW PUSH 66 HP-726513J HEAD R/P RP-7342 BR-3110 TAPE SELECTOR 68 BM-726481T MOTOR M9H12U16-4 33 *ES-337902 SW PUSH SDLD1P01-1 77 ZS-726516J SCREW M2X7 POWER SW 78 ZS-7 17809 SCREW AZIMUTH 34 *ES-725477T SW SLID

40、E 83 ZW-726464J WASHER CUT1.2X3.8X0.4 U VOLTAGE SELECTOR 84 ZW-726518J WASHER CUTl.55X3.8X0.5 35 ET-375780 TR FET 2SK381 E F05 85 ZW-726519J WASHER CUT2.05X4X0.5 36 ET-308472 TR 2SA1 115 E.F.G F05 94 ES-726523J SW LEAF MSW-1664 37 ET-522270 TR 2SC1210 D 96 ES-726522J SW LEAF MSW-1373 38 ET-330225 TR

41、 2SC1815 BL 97 ZS-726524J SCREW CAMERA 1.7X3 39 ET-308141 TR 2SC2603 G F05 99 ZS-726495J SCREW MS 40 ET-338410 TR 2SC2878 A,B 41 *ET-371028 TR 2SD1266 P,Q 42 EV-725631T VR SLIDE 50KAX2 REC LEVEL 43 HE-726514J HEAD E E-321 PL-0201 44 HP-726513J HEAD R/P RP-7342 BR-3110 45 MB-726520J BELT COUNTER 46 M

42、B-725796J BELT MAIN 47 MB-726455J BELT RF 48 MC-725628T COUNTER 49 MI-725793J GEAR FF 50 MI-726503J GEAR FF 51 MI-726456J GEAR TAKE-UP 52 MI-726501J TAKE UP ROLLER GEAR 53 MR-719575 MOTOR PULLEY LIST MECHA BLOCK (PB) NOTE: Parts will not be supplied if they are not listed in the parts list, even if

43、they appear on the assembling illustrations with referrence No. PARTS LIST 9 MECHA BLOCK (REC/PB) NOTE: Parts will not be supplied if they are not listed in the parts list, even if they appear on the assembling illustrations with referrence No. 10 PARTS LIST 3. MECHA BLOCK (REC/ PB) 5. MAIN P.C BOAR

44、D Ref. No. Part No. Descri pti on Ref. No. Part No. Descri pti on 12 ZG-717775 SP PA USE LEVER D101 ED-327057 D SI LI CON H D S442X 13 M Z-717776 STOPPER PA USE D201 ED-327057 D SI LI CON H D S442X 14 ZG-7 17777 SP BUTTON LEVER(C) D301 ED-327057 D SI LI CON H D S442X 16 ZG-726485J SP BUTTON LEVER (A

45、) D302 ED-327057 D SI LI CON H D S442X 17 ZG-726486J SP PLAY BUTTON LEVER(S) D303 ED-327057 D SI LI CON H D S442X 19 ZG-726487J SP ACTUATOR D501 ED-327057 D SI LI CON H D S442X 21 ZG-725798J SP AUTO LEVER D502 ED-327057 D SI LI CON H D S442X 22 ZG-726488J SP BUTTON LEVER (E) D601 ED-720805 D SI LI C

46、ON H 1N5393 23 ES-726489J SW LEAF M SW -1541T D 602 ED-720805 D SI LI CON H 1N5393 24 ZG-726490J SP SW ACTUATOR D 603 ED-348990 D SI LI CON H D S446 27 HZ- 7 17785 HEAD BA SE D604 ED-703903 DZEN ER H RD15E B2 28 BL-726491J SENSI NG PLATE A SSY D605 ED-720799 D ZENER H RD 1I E B3 29 ZG-717782 SP EH D

47、606 ED-327057 D SI LI CON H D S442X 30 ZG-717784 SP HEAD PANEL (S) D607 ED-348990 D SI LI CON H DS446 3 3 ZS-725799J SCREW PM E D901 ED-327057 D SI LI CON H D S442X 34 ZG-717786 SP AZI M UTH D902 ED-327057 D SI LI CON H D S442X 35 BL-726493J PI NCH ROLLER ARM A SSY D903 ED-327057 D SI LI CON H D S44

48、2X 36 ZG-726494J SP PI NCH ROLLER D904 ED-327057 D SI LI CON H D S442X 39 BL-72649ej RF PULLEY ARM A SSY D905 ED-327057 D SI LI CON H D S442X PLAY D906 ED-327057 D SI LI CON H D S442X 40 ZG-726497J SP RF PULLEY ARM D907 ED-327057 D SI LI CON H D S442X 41 ZS-726498J SCREW CO LLER RF ARM D908 ED-32705

49、7 D SI LI CON H D S442X 42 M B-726455J BELT RF D909 ED-327057 D SI LI CON H D S442X 44 BF-717793 FLYW HEEL A SSY D910 ED-327057 D SI LI CON H D S442X 46 BL-726500J TAKE UP GEAR PLATE A SSY D911 ED-327057 D SI LI CON H D S442X TAPE SELECTO R D 912 ED-327057 D SI LI CON H D S442X 47 M I -726501J TAKE UP ROLLER GEAR D915 ED-327057 D SI LI CON H D S4